From Manufacturer
The ACGP53 Audio Converter from Indipro Tools is designed to adapt XLR male plugs—industry standard in pro audio situations—into a 10-pin mini-USB stereo plug suitable for GoPro cameras. It features 2x XLR female jacks (for the male XLR connection) and comes with a 15mm rod clamp that can attach to any 1/4"-20 threaded hole. Please note: This adapter does not provide phantom power.